47377743481 has 2 divisors, whose sum is σ = 47377743482. Its totient is φ = 47377743480.

The previous prime is 47377743407. The next prime is 47377743499. The reversal of 47377743481 is 18434777374.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 44781331456 + 2596412025 = 211616^2 + 50955^2 .

It is a cyclic number.

It is not a de Polignac number, because 47377743481 - 2¹³ = 47377735289 is a prime.

It is a super-2 number, since 2×47377743481² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (47377747481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23688871740 + 23688871741.

It is an arithmetic number, because the mean of its divisors is an integer number (23688871741).

Almost surely, 2^47377743481 is an apocalyptic number.

It is an amenable number.

47377743481 is a deficient number, since it is larger than the sum of its proper divisors (1).

47377743481 is an equidigital number, since it uses as much as digits as its factorization.

47377743481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11063808, while the sum is 55.

The spelling of 47377743481 in words is "forty-seven billion, three hundred seventy-seven million, seven hundred forty-three thousand, four hundred eighty-one".